CN104308639A - Movable flexible restriction non-blocking damping vibration reduction and noise reducing device - Google Patents
Movable flexible restriction non-blocking damping vibration reduction and noise reducing device Download PDFInfo
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- CN104308639A CN104308639A CN201410541883.7A CN201410541883A CN104308639A CN 104308639 A CN104308639 A CN 104308639A CN 201410541883 A CN201410541883 A CN 201410541883A CN 104308639 A CN104308639 A CN 104308639A
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- flexible constraint
- noise reducing
- connecting rod
- unblock
- vibration damping
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/0032—Arrangements for preventing or isolating vibrations in parts of the machine
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/0078—Safety devices protecting the operator, e.g. against accident or noise
- B23Q11/0096—Safety devices protecting the operator, e.g. against accident or noise protecting against noise
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F7/00—Vibration-dampers; Shock-absorbers
- F16F7/01—Vibration-dampers; Shock-absorbers using friction between loose particles, e.g. sand
Abstract
The invention discloses a movable flexible restriction non-blocking damping vibration reduction and noise reducing device, which comprises an upper support frame part connected with a machine tool main shaft box, wherein the upper support frame part is connected with a lower support frame part through a height regulating part, the upper support frame part comprises a small circular ring arranged on the lower end surface of the machine tool main shaft box, a plurality of upper hinges connected with the height regulating part are arranged on the lower surface of the small circular ring, a gap is formed between inner holes of the small circular rings and the main tool main shaft, the height regulating part comprises an upper connecting rod and a lower connecting rod, the upper connecting rod is connected with the upper hinge, the lower connecting rod is connected with the lower support frame part, the lower end part of the upper connecting rod is provided with a guide hole and a guide groove, the upper end of the lower connecting rod is provided with a guide groove and a guide post matched with the guide hole, the connecting ends of the upper and lower connecting rods are connected through the guide holes, the guide posts, the guide grooves and fastening elements, the lower support frame part comprises a large circular ring, a lower hinge connected with the lower connecting rod is arranged on the upper end surface of the large circular ring, and the lower end surface of the large circular ring is fixedly provided with inner and outer nested flexible restriction bags.
Description
Technical field
The invention belongs to Noise and Vibration Control field, particularly relate to a kind of flexible constraint unblock vibration damping and noise reducing device of movement.
Background technology
As everyone knows, honeycomb sandwich structure and similar honeycomb sandwich structure are a kind of sandwich structures be made up by physics or chemical action of the covering up and down of thin-walled and battenboard, its core may be corrugated plating, gusset, honeycomb core, foamed material etc., and its preparation method may be by any one in extruding, welding or the technique such as bonding or multiplely to make.Although this technique makes thin-walled part obtain relative optimization in material configuration, improve integrally-built bearing capacity, but this structure is in process, particularly in boring-mill work process, the blade cycles rotating boring and milling cutter cuts thin-walled skin in honeycomb sandwich structure and similar honeycomb sandwich structure and core, the thin-walled part in total is made to produce violent vibration, in addition the thin wall cavity of structure itself, thus give off ear-piercing noise, have a strong impact on the working environment in whole workshop and the physical and mental health of Field Force.It is all the feature utilizing viscoelastic material fissipation factor large that traditional damping structure comprises free damping structure, constrained damping structure and damping insert structure etc., pasted on the surface needing vibration and noise reducing structure, or the surface of the workpiece that is laid in, with the vibrational energy of dissipative structure, realize the object of vibration and noise reducing.Because this honeycomb sandwich structure and similar honeycomb sandwich structure are in boring-mill work process, rotate the blade of boring and milling cutter while the thin-walled skin cut in honeycomb sandwich structure and similar honeycomb sandwich structure and core, machining spindle also will complete feed motion, so such damping structure can affect the processing of cutter to processing district.In addition traditional damping structure easily aging, come off, lose the function of original visco-elastic damping material soon.
Summary of the invention
The object of the invention is for overcoming above-mentioned the deficiencies in the prior art, a kind of flexible constraint unblock vibration damping and noise reducing device of movement is provided.
For achieving the above object, the present invention adopts following technical proposals:
A flexible constraint unblock vibration damping and noise reducing device for movement, comprise the upper bracket part be connected with lathe headstock, upper bracket part is divided by height adjusting part and is connected with lower carriage part;
Described upper bracket part comprises the small circle ring be fixedly installed on lathe headstock lower surface, described small circle ring lower surface is provided with and somely divides with height adjusting part the upper hinge be connected, gap is left between the endoporus of described small circle ring and machine tool chief axis, and keep the axiality of small circle ring endoporus center and machine tool chief axis within 0.10mm, to prevent machine tool chief axis and to be contained in the large circle of process tool on main shaft and lower carriage part and flexible constraint bag operationally interferes
Described height adjusting part divides the upper connecting rod comprising and being connected with upper hinge and the lower connecting rod be connected with lower carriage part, described upper connecting rod bottom is provided with pilot hole and gathering sill, the upper end of lower connecting rod is provided with the guide pillar and gathering sill that match with pilot hole, and the link of upper and lower connecting rod is connected by pilot hole, guide pillar, gathering sill and securing member;
Described lower carriage part comprises large circle, large circle upper surface is provided with the lower hinge be connected with lower connecting rod, and large circle lower surface is installed with inside and outside nested flexible constraint bag.
Described upper hinge totally three, is evenly arranged on small circle ring lower surface.
Described upper hinge is plane hinge or spherical hinge.
Have a cannelure in described large circle lower surface, a side of inside and outside nested flexible constraint bag is fixed in described cannelure by pressure ring and screw.
Described inside and outside nested flexible constraint bag comprises the skin be made up of the fine and close braid of metal stainless steel filament and the internal layer be made up of high strength fibre woven cloth, is filled with the granule body of unblock vibration damping and noise reducing in internal layer.
The internal layer of described inside and outside nested flexible constraint bag is processed into annular enclosure space by the high strength fibre woven cloth of densification by sewing tech, the diameter of this annular enclosure space is 1.2-10 times of process tool diameter, and the selection of multiple is relevant with the size of process tool diameter, namely the cutter that diameter is little will select large value, the cutter that diameter is large will select little value, produces interference man-hour be advisable not add with cutting tool.
The skin of described inside and outside nested flexible constraint bag is the annular closed protective outer bag that the densification of metal stainless steel filament is woven into, and annular closed protective outer bag is fixed on large circle lower surface.
Described inside and outside nested flexible constraint bag adopts and rectangle high strength fibre woven cloth is sewed up mutually from beginning to end along its length with metal stainless steel filament braid, center line along its length, by the dual-side doubling of high strength fibre woven cloth and metal stainless steel filament braid, high strength fibre woven cloth and metal stainless steel filament braid are respectively internal layer and the skin of flexible constraint bag, the granule body of unblock vibration damping and noise reducing is filled in internal layer, again the high strength fibre woven cloth of doubling and metal stainless steel filament braid side are installed in large circle lower surface by pressure ring and securing member.
The particle diameter of described granule body is 3mm-8mm, and granule body filling rate in inside and outside nested flexible constraint bag is 60-80%; Granule body is tungsten, lead, iron or sandstone,
Totally three, described lower hinge, is evenly arranged on large circle upper surface.
Described lower hinge is plane hinge or spherical hinge.
Inventive principle: the damping of granule body flexible constraint is the vibration damping and noise reducing technology of a kind of novel anti-adverse environment of 20th century the nineties proposition.It by filling granule body in flexible constraint body, and the recoil utilizing granule to produce when structural vibration is used for the vibration of reduction structure; Also utilize to produce in oscillating movement between granule body and between granule body and flexible constraint simultaneously and touch building, dry friction, and the power conversion occurred between them, heating, viscous detrusion etc. absorb or dissipate vibrational energy.Show after tested: in the hole of beam, fill tungsten microparticle with the filling rate of 90%, more than 60 times can be reduced at the first natural frequency place amplitude of beam, the damping ratio of beam is increased to 0.109 by original 0.000148, improve nearly three orders of magnitude, and fill tungsten powder particles only account for beam heavy about 5%, it serves to show the validity of granule body damping.
Pre-manufactured diameter is poured in the annular bag of flexible constraint at the granule body filler of 3mm-8mm, and filling rate is 60-80%, and this annular bag internal layer is made up of the high strength fibre woven cloth of densification.In order to prevent metal seamed edge on machined surface, high strength geotextile bag is scratched or hard small metal particles scuffing surface to be machined; the outer fine and close annular protective bag for the braiding of metal stainless steel filament of this inner bag, the inside and outside nested annular bag of whole flexible constraint is connected on the Metallomacrocycle of a support bottom.
The connecting rod of Metallomacrocycle and 3 telescopic equidistant distributions of length is hinged, granule body in flexible constraint bag under gravity, for providing certain pressure between flexible constraint bag and panel machining, guarantee that granule physical efficiency is pressed on the honeycomb sandwich structure of processing and the covering face of similar honeycomb sandwich structure indirectly.3 length scalable and on annulus the other end of the connecting rod of equidistantly distribution and the small circle ring of frame upper also equidistantly hinged, the small circle ring of this frame upper is directly connected with the lower end surface of processing machine tool spindle box, and keep the coaxiality error of the center line of whole device and machine tool chief axis center line within 0.10mm, also require that small circle ring can not produce with lathe rotary main shaft and interfere.
Notice that support lower metal large circle is moderate with the diameter of inside and outside nested flexible constraint bag, the too little flexible pouch of circle diameter under the effect of deadweight, can and process tool interference; Diameter too conference affects the regulation effect of whole device to vibration noise, this circle diameter is generally 1.2-10 times of process tool diameter, the cutter that diameter is little will select the large point value of multiple, and the cutter that diameter is large will select multiple pixel value, is advisable not produce interference with process tool.
The cross section of flexible pouch nested inside and outside annular is also circular, this diameter of a circle is also unsuitable excessive or too small, generally choose in 50-300mm, this diameter is relevant with the material of granule body filler, also relevant with the diameter of process tool, generally choose not produce with process tool and interfere and ensure that the average weight of filler in whole flexible constraint bag is principle.
Usually the granule body material of putting filled out by inside and outside nested flexible constraint bag can be tungsten, lead, iron etc., and can be even short grained sandstone, can also be the small metal particles body that some other anti-oxidant, rustless material is made.Generally speaking, the large material of density is under identical vibration frequency and amplitude situation, and the energy of recoil can be larger, but the excessive granule of density can increase the weight of total, affect the feed motion of machine tool chief axis, so will as the case may be, select flexibly during design.
When the mobile flexible constraint large-scale vertical lathe unblock vibration damping and noise reducing device work of making like this, when the cutter cutting honeycomb sandwich structure of lathe and similar honeycomb sandwich structure plate shell (housing cambered surface here will have enough large cambered surface radius), total vibration can be evoked, because the vibration velocity direction of short grained relative motion and structure is not quite identical, produce in oscillating movement between granule body and between granule body and flexible constraint and recoil, touch building, dry friction, and the power conversion occurred between them, heating, viscous detrusion etc. will consume integrally-built vibrational energy to a great extent, hinder integrally-built vibration, reach and fundamentally reduce the object that amplitude of vibration reduces processing noise.
The flexible constraint unblock vibration damping and noise reducing device of this movement can suppress honeycomb sandwich structure and similar honeycomb sandwich structure plate shell on large-scale vertical lathe, to add the vibration noise in man-hour, the especially vibration noise problem of low frequency well.Have the advantages such as practicality, reliability, economy, promotion prospect widely.
The present invention proposes the flexible constraint granule body damping vibration attenuation technology using movement, devise one is done feed motion support with vertical processing machine tool main shaft, this frame upper is directly connected on the lower surface of lathe headstock, support bottom is connected with the granule body flexible constraint bag of damping vibration attenuation, under gravity, the bottom of the flexible constraint bag at unblock vibration damping and noise reducing granule body place can be pressed on the covering of honeycomb sandwich structure or similar honeycomb sandwich structure flexibly, by the impact damping technology of granule body, thus reduce the vibration & noise of processing site.This structure is simple, easy, reliable, the life-span is long, and large-scale vertical boring machine, vertical knee-type milling machine, vertical machining centre, vertical lathe, radial drilling machine etc. that particularly suitable runs up use in the processing to large, honeycomb sandwich structure and similar honeycomb sandwich structure plate shell.
Accompanying drawing explanation
Fig. 1 a is the installation diagram of the flexible constraint unblock vibration damping and noise reducing device of movement;
The left view of Fig. 1 b Fig. 1 a;
Fig. 1 c be in Fig. 1 a A-A to profile;
Fig. 2 is No. 1 position partial enlarged view in Fig. 1 b;
Fig. 3 is No. 2 position partial enlarged views in Fig. 1 a;
Fig. 4 is No. 3 position partial enlarged views in Fig. 1 a;
Fig. 5 a be in Fig. 1 a K to rotation zoomed-in view;
Fig. 5 b be in Fig. 5 a K-K to profile.
In figure: 1. vertical processing machine tool spindle box, 2. small circle ring, 3. attachment screw, 4. upper hinge, 5. machine tool chief axis, 6. upper connecting rod, 7. lower connecting rod, 8. height-regulating slot, 9. play hinge (can be spherical hinge also can be plane hinge), 10. large circle (noticing that large circle diameter is greater than small circle ring diameter), the pressure ring of nested flexible constraint bag inside and outside 11., flexible constraint bag nested inside and outside 12., the fine and close braid of 13. metal stainless steel filament, 14. high strength fibre woven cloth, the granule body of 15. unblock vibration damping and noise reducings.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further described.
The present invention is based on unblock vibration damping and noise reducing theoretical, and utilize the feature (housing cambered surface here will have enough large cambered surface radius) of vertical processing machine tool and honeycomb sandwich structure and similar honeycomb sandwich structure plate shell, recoil effect is produced when structural vibration by utilizing the granule body of flexible constraint, in oscillating movement, produce effects such as touching building, dry friction, viscous detrusion between granule body and between granule body and flexible constraint, absorb or dissipate vibrational energy.Enforcement of the present invention mainly divides three parts: one, the support of the flexible constraint unblock vibration damping and noise reducing of Novel movable; Two, inside and outside nested flexible constraint bag; Three, the selecting and filling in inside and outside nested flexible constraint bag of unblock vibration damping and noise reducing granule body.Thus the present invention is implemented, reach good vibration damping and noise reducing effect.
1. the support of granule body flexible constraint unblock vibration damping and noise reducing
Overall assembly relation of the present invention is as shown in 1a, Fig. 1 b, Fig. 1 c, Fig. 2, Fig. 3 and Fig. 4 are the enlarged drawing of local location in Fig. 1 b, Fig. 1 a respectively, Fig. 5 a be in Fig. 1 a K to rotation zoomed-in view, the structure of its medium-height trestle forms primarily of three fractions, be respectively the upper bracket part be connected with lathe, height adjusting part divides and lower carriage part.Upper bracket part as shown in Fig. 1 a, Fig. 1 b, Fig. 1 c is mainly used to be connected with processing machine tool spindle box 1, and it comprises small circle ring 2, attachment screw 3 and upper hinge 4 (also can be plane hinge the invention process fashionable dress be spherical hinge).Wherein the present invention is fixed on the main spindle box of vertical processing machine tool by screw 3 by small circle ring 2, gap will be left between small circle ring endoporus and machine tool chief axis 5 when noting installing, and keep the axiality of small circle ring endoporus center and machine tool chief axis within 0.10mm, operationally interfere with the large circle and flexible constraint bag that prevent machine tool chief axis 5 and the process tool be contained on main shaft and lower carriage part, in the bottom of small circle ring 2, three hinges 4 are installed simultaneously, are used for dividing with height adjusting part being connected.
Here height adjusting part divides the height being mainly used to regulate whole device, this device is made to be suitable for the process tool of differing heights, this part comprises: the upper connecting rod 6 of tape guide hole and gathering sill, with the lower connecting rod 7 of guide pillar and gathering sill, height-regulating slot 8 and lower hinge 9 (also can be plane hinge the invention process fashionable dress be spherical hinge), wherein the structure for amplifying that divides of height adjusting part is as Fig. 5 a, shown in Fig. 5 b, realize mainly through the upper connecting rod 6 of accommodation zone pilot hole and gathering sill and the position of lower connecting rod 7 in regulating tank of band guide pillar and gathering sill, fixed screw is tightened again after lower connecting rod 7 pulls out from the pilot hole of regulating tank, the height of support just increases, otherwise just reduce.
That divides at height adjusting part is connected with lower carriage part below by lower articulated link chain 9, and lower carriage part comprises large circle 10 and the inside and outside nested flexible constraint bag 12 being installed on large circle 10 lower surface, and large circle 10 upper surface is fixedly connected with lower articulated link chain 9.The granule body 15 of unblock vibration damping and noise reducing is filled with in the internal layer of inside and outside nested flexible constraint bag 12 (this flexible constraint bag is made up of the high strength fibre woven cloth 14 of the fine and close braid 13 of outer field metal stainless steel filament and internal layer).
Whole device height adjustment is: unclamp 6 screws in 3 height-regulating slot 8, the cutter of adjustment lathe, make it the working height requirement met honeycomb sandwich structure or similar honeycomb sandwich structure plate shell, and reserve the surplus that necessarily moves up and down, at this moment the granule body in flexible constraint bag is allowed all to be pressed on processed panel, tighten 6 screws, the height of the flexible constraint large-scale vertical machining tool unblock vibration damping and noise reducing device of movement so has just been adjusted.
2. flexible constraint bag nested inside and outside
Inside and outside nested flexible constraint bag has two kinds of production methods:
One is, the inner bag of immediate constraint granule body is processed into annular enclosure space by the high strength fibre woven cloth of densification by sewing tech, the diameter of this annular enclosure space is generally 1.2-10 times of process tool diameter, notice during design that the cutter that diameter is little will select large value, the cutter that diameter is large will select little value, produces interference man-hour be advisable not add with cutting tool.Any cross section of inner bag is also circular, and the diameter in this garden is generally chosen in 50-300mm, will consider the material of in-built granule body filler during design, the granule body that the material that density is large is made as tungsten, and cross-sectional diameter can get smaller value; The little material of density is as short grained stone, and cross-sectional diameter can get larger point value.When also will consider that process tool works, inside and outside nested flexible constraint bag should not be principle with cutter interference simultaneously, and it is moderate to ensure that the weight after filler loaded by whole flexible constraint bag, otherwise affects machine tool chief axis and normally run.
In order to prevent metal seamed edge on machined surface, high strength geotextile bag is scratched or hard small metal particles body scuffing surface to be machined; this inner bag skin is the annular closed protective outer bag that the densification of metal stainless steel filament is woven into; the diameter of this annular closed protective outer bag should to close inner bag diameter the same with annular, but the cross-sectional diameter that the annular that metal stainless steel filament is woven into closes outer bag should be a bit larger tham the cross-sectional diameter that high strength fibre woven cloth makes annulus inner bag.
The second is, inside and outside nested flexible constraint bag first intercepts two blocks of rectangular material when making, one piece is high strength fibre woven cloth, another block is the fine and close braid of metal stainless steel filament, along its length the head and the tail of two pieces of braids are sewed up connection separately respectively, and then center line along its length, by the both sides doubling united by a seam, notice that this rectangular length equals or micro-girth (i.e. flanging ring inner circle girth) being greater than closed circle, width is greater than the girth of cross circular section, grow part and be used as flanging ring flanging use, then diameter is added in the annular closing bag of flexible constraint at the granule body filler of 3mm-8mm, guarantee that filling out the rate of punching is 60-80%, be pressed in the middle of pressure ring 11 and large ring 10 have more part, concrete structure is as Fig. 1 a, Fig. 1 b, shown in Fig. 1 c, by opening portion, according to being pressed on completely by inside and outside nested flexible constraint bag 12 shown in Fig. 2, pressure ring 11 is middle with large ring 10 (notices that flanging length wants consistent, and granule body can not reserve mouth), the flexible constraint large-scale vertical lathe unblock vibration damping and noise reducing device of whole like this movement has just been in place.
3. the selecting and filling in inside and outside nested flexible constraint bag of granule body
The granule body particle size diameter of general filler is between 3mm-8mm, filling rate is at 60%-80%, filling out the granule body material of putting can be tungsten, plumbous, iron etc., or even sandstone of granule body, can also be that some other is anti-oxidant, the small metal particles body that rustless material is made, should according to the power of on-the-spot vibration noise during design, select the granule body of unlike material, theoretical according to damping vibration attenuation, identical in other condition, fill different types of granule body, the effect of vibration and noise reduction obtained is different, the density of particle is larger, effect is better.Otherwise effect will be deteriorated.When sandstone of certain granule body makes filler material source ratio be easier to, economical, but density is relatively low, reach same effect of vibration and noise reduction, can the size of once large total.
By reference to the accompanying drawings the specific embodiment of the present invention is described although above-mentioned; but not limiting the scope of the invention; one of ordinary skill in the art should be understood that; on the basis of technical scheme of the present invention, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection scope of the present invention.
Claims (9)
1. a flexible constraint unblock vibration damping and noise reducing device for movement, is characterized in that, comprise the upper bracket part be connected with lathe headstock, upper bracket part is divided by height adjusting part and is connected with lower carriage part;
Described upper bracket part comprises the small circle ring be fixedly installed on lathe headstock lower surface, described small circle ring lower surface is provided with and somely divides with height adjusting part the upper hinge be connected, leave gap between the endoporus of described small circle ring and machine tool chief axis, and keep the axiality of small circle ring endoporus center and machine tool chief axis within 0.10mm;
Described height adjusting part divides the upper connecting rod comprising and being connected with upper hinge and the lower connecting rod be connected with lower carriage part, described upper connecting rod bottom is provided with pilot hole and gathering sill, the upper end of lower connecting rod is provided with the guide pillar and gathering sill that match with pilot hole, and the link of upper and lower connecting rod is connected by pilot hole, guide pillar, gathering sill and securing member;
Described lower carriage part comprises large circle, large circle upper surface is provided with the lower hinge be connected with lower connecting rod, and large circle lower surface is installed with inside and outside nested flexible constraint bag.
2. the flexible constraint unblock vibration damping and noise reducing device of movement as claimed in claim 1, it is characterized in that, described upper and lower hinge all has three, and three upper hinges are evenly arranged on small circle ring lower surface, and three lower hinges are evenly arranged on large circle upper surface.
3. the flexible constraint unblock vibration damping and noise reducing device of movement as claimed in claim 1, it is characterized in that, described upper and lower hinge is plane hinge or spherical hinge.
4. the flexible constraint unblock vibration damping and noise reducing device of movement as claimed in claim 1, it is characterized in that, described inside and outside nested flexible constraint bag comprises the skin be made up of the fine and close braid of metal stainless steel filament and the internal layer be made up of high strength fibre woven cloth, is filled with the granule body of unblock vibration damping and noise reducing in internal layer.
5. the flexible constraint unblock vibration damping and noise reducing device of movement as claimed in claim 4, it is characterized in that, the internal layer of described inside and outside nested flexible constraint bag is processed into annular enclosure space by the high strength fibre woven cloth of densification by sewing tech, the diameter of this annular enclosure space is 1.2-10 times of process tool diameter, and the selection of multiple is relevant with the size of process tool diameter, namely the cutter that diameter is little will select large value, the cutter that diameter is large will select little value, produces interference man-hour be advisable not add with cutting tool.
6. the flexible constraint unblock vibration damping and noise reducing device of movement as claimed in claim 5; it is characterized in that; the skin of described inside and outside nested flexible constraint bag is the annular closed protective outer bag that the densification of metal stainless steel filament is woven into, and annular closed protective outer bag is fixed on large circle lower surface.
7. the flexible constraint unblock vibration damping and noise reducing device of movement as claimed in claim 5, is characterized in that, have a cannelure in described large circle lower surface.
8. the flexible constraint unblock vibration damping and noise reducing device of movement as claimed in claim 7, it is characterized in that, described inside and outside nested flexible constraint bag adopts and rectangle high strength fibre woven cloth is sewed up mutually respectively separately from beginning to end along its length with metal stainless steel filament braid, center line along its length, by the dual-side doubling of high strength fibre woven cloth and metal stainless steel filament braid, high strength fibre woven cloth and metal stainless steel filament braid are respectively internal layer and the skin of flexible constraint bag, the granule body of unblock vibration damping and noise reducing is filled in internal layer, again the high strength fibre woven cloth of doubling and metal stainless steel filament braid side are fixed in described cannelure by pressure ring and screw.
9. the flexible constraint unblock vibration damping and noise reducing device of movement as claimed in claim 1, it is characterized in that, the particle diameter of described granule body is 3mm-8mm, and granule body filling rate in inside and outside nested flexible constraint bag is 60-80%; Granule body is tungsten, lead, iron or sandstone.
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| CN107457692A (en) * | 2017-08-09 | 2017-12-12 | 广东省职业病防治院 | The vibration dampening tool of polishing workpiece |
| CN107978944A (en) * | 2017-12-29 | 2018-05-01 | 扬州海通电子科技有限公司 | A kind of synchronous rotation device of large-scale slip ring group |
| CN108168661A (en) * | 2018-02-08 | 2018-06-15 | 中国农业大学 | A kind of on-line weighing system available for vibration environment |
| CN108747419A (en) * | 2018-06-20 | 2018-11-06 | 汪志明 | A kind of drillman's table mechanism |
| CN108817996A (en) * | 2018-06-20 | 2018-11-16 | 汪志明 | A kind of machining drillman's table mechanism |
| CN113272098A (en) * | 2019-01-18 | 2021-08-17 | 株式会社牧野铣床制作所 | Feeding device of machine tool |
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| CN1587739A (en) * | 2004-10-11 | 2005-03-02 | 北京航空航天大学 | Six freedom super magnetostrictive active vibration control platform |
| CN1824579A (en) * | 2006-03-31 | 2006-08-30 | 郑钢铁 | Integral vibration isolation platform of astrovehicle |
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